Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Meghan M Martewicz

Social Worker in Tinley Park, IL · enumerated 2026.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1982516209

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Registry record

Entity type Individual (Type 1)

Name Meghan M Martewicz

Sex Female

Practice address 18350 Crossing Dr, Tinley Park, IL, 60487

Phone (708) 342-5200

Enumeration date Sep 21, 2026

Last updated in NPPES Sep 21, 2026

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 150.129698 (IL) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Meghan Martewicz?

Meghan Martewicz is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-21.